Method of sulfonation with sulfur trioxide
United States Patent 2616936

Inventors:
Mammen, Howard E.
Hervert, George L.
Publication Date:
11/04/1952
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Assignee:
UNIVERSAL OIL PROD CO
Primary Class:
Other Classes:
558/41, 546/294, 549/66
International Classes:
C07B45/02; C07B45/00
US Patent References:
2198595Process for the alkylation of aromatic compounds
2203441Water-soluble and oil-soluble sulphonic or sulphate derivatives of hydrocarbons
2268443Sulphonation of organic compounds
2285390System for manufacturing sulphonic acids
2290167Preparation of sulphonation derivatives
2480592Organic sulfonates and method of making same
Foreign References:
GB539281A